143800978 has 16 divisors (see below), whose sum is σ = 221921856. Its totient is φ = 69853680.

The previous prime is 143800967. The next prime is 143800999. The reversal of 143800978 is 879008341.

It is a self number, because there is not a number n which added to its sum of digits gives 143800978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4333 + ... + 17503.

It is an arithmetic number, because the mean of its divisors is an integer number (13870116).

Almost surely, 2^143800978 is an apocalyptic number.

143800978 is a deficient number, since it is larger than the sum of its proper divisors (78120878).

143800978 is a wasteful number, since it uses less digits than its factorization.

143800978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13329.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 143800978 is about 11991.7045493958. The cubic root of 143800978 is about 523.9066928824.

The spelling of 143800978 in words is "one hundred forty-three million, eight hundred thousand, nine hundred seventy-eight".